Leeds United are interested in raiding Sunderland to sign left-back Dennis Cirkin ahead of the January window, and transfer expert Graeme Bailey has given his thoughts on the potential move. The 22-year-old has starred for Sunderland over the last three years, helping them gain promotion back to The Championship after his move from Tottenham and closing in on 100 matches for the Black Cats. Cirkin even scored on Saturday from all of 25 yards out during a 2-2 draw with Coventry. Leeds are likely to be in the market for a new left-back with Junior Firpo’s contract due to expire at the end of the…